[  483.471736] netdevsim netdevsim395 eni395np1: renamed from eth0
[  483.472286] netdevsim netdevsim643 eni643np1: renamed from eth1
[  483.567636] Could not find device with ifindex 2000 in netnsfd 11
[  483.567736] Could not find netns with fd: 2000
[  483.567786] Cannot link a netdevsim to itself
[  483.567853] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).